[1] CGAS Los Angeles missions included search and rescue, homeland security, and environmental protection.[citation needed] Helicopters from the base patrolled the west coast of the United States from Morro Bay to Dana Point.[citation needed] The unit began as an aviation detachment in August 1962, with one HO-4S helicopter from CGAS San Diego.[2] In 2004, Los Angeles World Airports informed USCG that the 25-year lease which would expire in 2011 would not be renewed for another 25 years.its component units were relocated to a Coast Guard Forward Operating Base located at NVBC Point Mugu.